IBM 71455RU Installation And User Manual

Contents

Attention: Before you change any switch settings or move any jumpers, turnoff the server; then, disconnect all power cords and external cables. See thesafety information that begins on page vii. Do not change settings or movejumpers on any system-board switch or jumper blocks that are not shown in thisdocument.v The default for the Password override jumper (J29) is Off.While the server is turned off, move the jumper to pins 2 and 3 clear thepower-on password override. You can then start the Setup utility and reset thepower-on password. You do not have to return the jumper to the previousposition.The power-on password override jumper does not affect the administratorpassword.Attention: Before you move any jumpers, turn off the server; then, disconnectall power cords and external cables. See the safety information that begins onpage vii. Do not change settings or move jumpers on any system-board switch orjumper blocks that are not shown in this document.Administrator passwordIf an administrator password is set, you must type the administrator password foraccess to the full Setup utility menu. You can use any combination of up to sevencharacters (A - Z, a - z, and 0 - 9) for the password.Attention: If you set an administrator password and then forget it, there is no wayto change, override, or remove it. You must replace the I/O board.Using the Boot Selection Menu programThe Boot Selection Menu is used to temporarily redefine the first startup devicewithout changing boot options or settings in the Setup utility.To use the Boot Selection Menu program, complete the following steps:1. Turn off the server.2. Restart the server.3. When the prompt Select Boot Device is displayed, press F12. If abootable USB mass storage device is installed, a submenu item (USBKey/Disk) is displayed.4. Use the Up Arrow and Down Arrow keys to select an item from the menu andpress Enter.The next time the server starts, it returns to the startup sequence that is set in theSetup utility.Starting the backup server firmwareThe system board contains a backup copy area for the IBM System x ServerFirmware (server firmware). This is a secondary copy of the server firmware thatyou update only during the process of updating the server firmware. If the primarycopy of the server firmware becomes damaged, use this backup copy.To force the server to start from the backup copy of the server firmware, turn off theserver; then, move the UEFI boot recovery J22 jumper to the backup position (pins2 and 3).92 IBM System x3850 X5 and x3950 X5 Types 7145 and 7146: Installation and User’s Guide